v2.4.0.6
Net Income per Share (Calculation Of Basic And Diluted Net Income Per Share) (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended
Jul. 28, 2012
Jul. 30, 2011
Jul. 31, 2010
Net Income Per Share [Abstract]      
Net income $ 8,041 $ 6,490 $ 7,767
Weighted-average shares-basic 5,370 5,529 5,732
Effect of dilutive potential common shares 34 34 116
Weighted-average shares-diluted 5,404 5,563 5,848
Net income per share-basic $ 1.50 $ 1.17 $ 1.36
Net income per share-diluted $ 1.49 $ 1.17 $ 1.33
Antidilutive employee share-based awards, excluded 591 379 344